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Aerosol Neutralizers

Aerosol neutralizers are an essential piece of many aerosol research studies because aerosol particles dispersed by nebulization, combustion, or powder dispersion are usually electrostatically charged.

Flowmeters

For half a century, TSI has earned the reputation as a leader in designing and manufacturing flow measurement instrumentation. TSI mass flowmeters and mass flow sensors for gases are used worldwide in laboratory and manufacturing settings, plus embedded applications.

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Fume Hood Monitors and Controls

TSI’s Fume Hood Monitors and Controllers help you comply with the requirements and recommendations set forth in ANSI, ASHRAE, NFPA, and OSHA, which specify best practices fume hood performance and laboratory design.

Indoor Air Quality Meters and Instruments

Work environments, as well as homes and businesses, often require that people spend a majority of their time indoors. As a result, individual’s long term health and comfort is largely dependent upon indoor air quality testing. Businesses are increasingly interested

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Plastics Analyzer

PolyMax™ Plastics Analyzer changes the game in plastics identification, using laser-based technology to validate the chemistry of both light and dark plastic compounds — based on science, not best guesses.

Airflow Air Measurement Instruments

Airflow™ Instruments are accurate, high quality, professional-grade instruments used by a wide range of customers, including building service contractors, commissioning specialists, facility engineers and research professionals.

Air Quality Monitoring

In addition to requiring minimal maintenance and low cost of ownership, TSI’s air quality monitoring instrumentation is reliable, easy to use in the field for both long term and short term deployments, and features research level accuracy.

Filter Testing

Fluid Mechanics

TSI's measurement solutions and knowledgeable staff can open up new understanding in your area of fluid mechanics and experimental research. Our products offer solutions in the areas of hydrodynamics, aerodynamics, spray diagnostics and more.

Occupational Health & Safety

TSI occupational hygiene instruments help with the selection and implementation of effective workplace engineering controls, as well as the selection, use, and limitations of personal protective equipment.

Condensation Particle Counter 3775

Product Details

Condensation Particle Counter 3775 is a general-purpose counter that detects airborne particles down to 4 nm. It provides highly accurate measurements over a wide concentration range from 0 to 107 particles/cm3. As a result, this CPC is quite versatile and well-suited for a broad range of applications.

The successor to the Model 3022A, the Model 3775 features extended single particle counting with continuous, live-time coincidence correction for concentrations up to 50,000 particles/cm3. A photometric mode takes over at higher concentrations. The 3775 also features an improved transition between the two count modes. It has a color VGA display, anti-spill design, water-removal capability, data logging and storage capabilities with a removable memory card, and USB and Ethernet ports. It includes built-in SMPS™ compatibility and our Aerosol Instrument Manager® software.

FAQs

Can the CPC be operated with different carrier gases?

Yes, but only inert gases.

Is the counting efficiency for each CPC determined individually?

No. The CPC efficiency curve has been determined by testing a statistically valid number of CPCs and averaging the results to obtain the curve published in the product literature. Variation between units is very small.

What is the final droplet size after growth by condensation?

This question has been investigated, theoretically, by Ahn and Liu (1990). For the initial particle diameters of 5 and 20 nm, the computation results show a final droplet size of 11.3 and 12.3 micrometers, respectively (Ahn and Liu, 1990). Similar experimental results have also been determined.